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4 years ago

Find the variance and standard deviation of 5,6,7,8,9

Mathematics

1 answer:

34kurt4 years ago

5 0

Step-by-step explanation:

To figure out the variance, subtract 82.5 from the mean, which is 5.5 and then divide by N, which is the value of numbers, (in this case 10) minus 1. The result is a variance of about 9.17. Standard deviation is the square root of the variance so that the standard deviation would be about 3.03.Calculate the mean.

Subtract the mean from each observation.

Square each of the resulting observations.

Add these squared results together.

Divide this total by the number of observations (variance, S2).

Use the positive square root (standard deviation, S).

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Which best describes the function represented by the data in the table? linear with a common ratio of 2 linear with a common fir

RoseWind [281]

Answer:

linear with a common first difference of 2

Step-by-step explanation:

If this is linear, the common first difference, or slope, will be the same throughout the entire table.

The formula for slope is

For the first set of points, we have:

m=(0--2)/(-2--3) = (0+2)/(-2+3) = 2/1 = 2

For the second set of points, we have:

m = (4-0)/(0--2) = 4/(0+2) = 4/2 = 2

For the third set of points, we have:

m = (12-4)/(4-0) = 8/4 = 2

The rate of change, or slope, is constant; this makes the function a linear function with a common first difference of 2

Hope it helps

5 0

3 years ago

Read 2 more answers

A D P 55° С (5x-35)° B What is the value of x?

Sholpan [36]

Answer:

18°

Step-by-step explanation:

5x-35 = 55°

5x = 55 + 35

5x = 90

X = 18°

7 0

2 years ago

If Skylar's property has a net income of $5,480, and returns 8 percent annually on the investment, then what is her property's v

saveliy_v [14]

Answer:

the Skylar's property value will be equal to $68,500.

Step-by-step explanation:

given,

the net income of $5,480

return of 8 percent annually on the investment

property value is the value upon which the buyer and the seller come on the same page means they agree for the price.

property value = net operating income / capital rate

= $\dfrac{5480}{0.08}$

= $68,500

hence, the Skylar's property value will be equal to $68,500.

8 0

3 years ago

Which of the following will not have congruent diagonals

Savatey [412]

As diagonals are not perpendicular, it cannot be a square or rhombus (latter does not have congruent diagonals). Hence, quadrilateral is a rectangle.

7 0

3 years ago

To the nearest tenth, what is the area of a circle whose diameter is 9 feet? Use 3.14 for π . Enter your answer in the box.

Rus_ich [418]

A=3.14*4.5^2=63.585=63.6

8 0

3 years ago

Read 2 more answers